Network Engineer LAN WLAN and Security

Tata Consultancy Services; Pune District, Chennai District; On-site; INR 1,800,000 - 2,600,000; Full time

Job summary

Tata Consultancy Services is seeking an experienced Network Engineer specialized in Enterprise LAN, WLAN, and security for our India operations. The role focuses on Aruba LAN/WLAN, Palo Alto firewalls, and ClearPass, with responsibilities spanning design, implementation, and ongoing operations across campus and data center environments.

The ideal candidate brings 10–12 years of relevant experience, hands-on expertise with Aruba and Palo Alto solutions, and strong troubleshooting skills.

Qualifications

• Experience in Enterprise LAN/WLAN and Network Security environments (10–12 years).
• Hands-on with Aruba LAN, Aruba Wireless, Palo Alto Firewalls, and ClearPass.
• Strong troubleshooting and analytical abilities.

Responsibilities

• Design, implement, and support Enterprise LAN and WLAN environments.
• Configure, manage, and troubleshoot Aruba LAN and switching infrastructure.
• Support Data Center networking including SpineLeaf and VXLAN.
• Implement and manage Layer2/Layer3 technologies including STP and VLANs.
• Operate Aruba Wireless solutions for optimal performance.
• Manage Palo Alto firewalls including zoning and segmentation.
• Administer Aruba ClearPass for NAC, authentication, authorization, and policy enforcement.
• Perform incident, problem, and change management per ITIL.
• Document network configurations and diagrams; collaborate with vendors and stakeholders.

Skills

Troubleshooting

Analytical skills

Aruba LAN

Aruba Wireless

Palo Alto Firewalls

ClearPass

Aruba Central

IAP

Network security

Tools

Arista switching

Job description

Network Engineer LAN, WLAN & Security

Role SummaryWe are seeking an experienced Network Engineer with strong expertise in Enterprise LAN, WLAN, Firewall Security, and Network Access Control (NAC) technologies. The role involves design, implementation, operations, and troubleshooting of campus and data center network environments, with a strong focus on Aruba switching, Aruba Wireless, Palo Alto firewalls, and Aruba ClearPass.

Key Responsibilities

• Design, implement, and support Enterprise LAN and WLAN environments.
• Configure, manage, and troubleshoot Aruba LAN and switching infrastructure.
• Support Data Center networking including modern architectures such as SpineLeaf and VXLAN.
• Implement and manage Layer2 and Layer3 technologies including STP and VLANs.
• Operate and support Aruba Wireless solutions, ensuring optimal performance and availability.
• Manage Firewall security using Palo Alto, including zoning and segmentation.
• Administer Aruba ClearPass for Network Access Control (NAC), authentication, authorization, and policy enforcement.
• Perform incident, problem, and change management activities in line with ITIL processes.
• Conduct root cause analysis (RCA) and support continuous service improvement.
• Maintain accurate network documentation, diagrams, and configuration records.
• Collaborate with crossfunctional teams, vendors, and stakeholders during transitions and BAU operations.

Technical SkillsLAN & Data Center Networking

• Aruba LAN / Aruba Switching
• STP, VLAN, VXLAN
• SpineLeaf architecture
• Arista switching (preferred)
• Data Center networking concepts

WLAN

• Aruba Wireless
• Aruba Central
• Instant Access Points (IAP)

Firewall & Security

• Palo Alto Firewalls
• Network zoning and segmentation

Network Access Control

• Aruba ClearPass
  • Authentication and authorization
  • Policy enforcement
  • Profiling and access control
• 10–12 years of experience in Enterprise LAN/WLAN and Network Security environments (flexible based on role level).
• Handson experience with Aruba LAN, Aruba Wireless, Palo Alto Firewalls, and ClearPass.
• Strong troubleshooting and analytical skills.
• Experience supporting global enterprise networks is preferred.

Certifications (Preferred)

Certification ID.Planned CertificationACE-A1.2Arista LANHPE6-A88Aruba Clearpass Aruba LANHPE6-A85Aruba WirelessNGFW-ENGINEERPaloAlto Certified Engineer Zscaler Role & responsibilities

Preferred candidate profile